By 1900, that family was in Wisconsin, as you said.
1900 United States Federal Census
Name: Gustaf Erichson
Home in 1900: Superior Ward 4, Douglas, Wisconsin
Age: 49
Estimated birth year: abt 1851
Birthplace: Sweden
Relationship to head-of-house: Head
Spouse's name: Mary
Race: White
Immigration Year: 1887
Household Members: Name Age
Gustaf Erichson 49
Mary Erichson 46
Anna Erichson 14
Carl Erichson 11
August Quist 36 (boarder)
John Johnson 35 (lodger)
Nels Grindering 29 (lodger)
Source Citation: Year: 1900; Census Place: Superior Ward 4, Douglas, Wisconsin; Roll: T623 1786; Page: 2A; Enumeration District: 69.
1900 United States Federal Census
Name: Mary Erichson
Home in 1900: Superior Ward 4, Douglas, Wisconsin
Age: 46
Estimated birth year: abt 1854
Birthplace: Sweden
Relationship to head-of-house: Wife
Spouse's name: Gustaf
Race: White
Immigration Year: 1887
1900 United States Federal Census
Name: Anna Erichson
Home in 1900: Superior Ward 4, Douglas, Wisconsin
Age: 14
Estimated birth year: abt 1886
Birthplace: Sweden
Relationship to head-of-house: Daughter
Father's name: Gustaf
Mother's name: Mary
Race: White
Immigration Year: 1887
1900 United States Federal Census
Name: Carl Erichson
Home in 1900: Superior Ward 4, Douglas, Wisconsin
Age: 11
Estimated birth year: abt 1889
Birthplace: North Dakota
Relationship to head-of-house: Son
Father's name: Gustaf
Mother's name: Mary
Race: White
Judy